Web.com has merged the SnapNames and NameJet inventories. So when you do a search for NameJet, SnapName domains will show up, and vice versa.
SEMrush is an independent company that shows which keywords that the domains rank for, the total number of searches done per month, cost of traffic. The various metrics are given below
SEMrush Rank: This is a rank of all the domains in the internet based on total searches that the domain ranks for
Keywords: The total keywords that the domain ranks for
Monthly Organic Traffic: Total traffic coming to the domain every month based on the SERP rankings
Cost of traffic: The total cost of traffic coming to the website - this is based on total traffic, cost per click for the keyword and location of the user.
Keyword data: We list the top 5 keywords that the domain ranks for along with it's position, the search volume, cpc, competition and the url that ranks for that keyword.